Buckles – buttons – clasps – etc.
Patent
1977-06-24
1978-09-19
Blunk, Evon C.
Buckles, buttons, clasps, etc.
104155, B65G 5104
Patent
active
041148355
ABSTRACT:
A carrier for the pneumatic conveying of loads over a pipeline the body of which is provided with longitudinal seals attached to its sides with provision for displacement in the vertical direction relative to the body and also provided with transverse seals at its end faces -- a forward and a rearward seal being provided to take into account the direction in which the carrier travels. The transverse seals form, in conjunction with the longitudinal seals, spaces above and below the body communicating with the space in the pipeline before and after the body, respectively, by way of at least one opening provided in each of the forward and rearward transverse seals. The forward and rearward transverse seals are fitted to the body with provision for displacement about same in the vertical direction, and a gate arranged to close an opening in the rearward seal either partially or in full depending on the differential pressure existing at the longitudinal seals is rigidly attached to the body at its end which faces the rearward transverse seal.
REFERENCES:
patent: 1053368 (1913-02-01), Eells
patent: 1183198 (1916-05-01), Hills
patent: 3734428 (1973-05-01), Alexandrov et al.
patent: 3952667 (1976-04-01), Kovanov
patent: 4042190 (1977-08-01), Ueno
Aglitsky Vladimir Efimovich
Alexandrov Adolf Moritsovich
Chernikin Alexei Vadimovich
Dokin Viktor Alexeevich
Dubner Evgeny Mikhailovich
Blunk Evon C.
Rowland James L.
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